Kurcha Marma in the Hand and Foot as a Layered Anatomical Region
Abstract
Kurcha Marma is described at four limb sites, yet the classical sources do not provide a modern sectional map. This has led authors to assign the term to different structures in the first web regions of the hand and foot. Purpose: This review examines what can be fixed from the textual landmarks and what remains an anatomical hypothesis. Sources and approach: Statements in the Sushruta Samhita and Ashtanga Hridaya were compared with published Kurcha interpretations and research on the first intermetacarpal and intermetatarsal regions. Results: Kshipra gives the most useful starting point because Kurcha is placed proximal to it and is allotted four angula. The hand field may cross the first dorsal interosseous, adductor pollicis, deep ulnar motor branches, and radial arterial pathways. The foot field may extend from dorsal intermetatarsal tissues into plantar fascia, intrinsic muscles, flexor elements, and neurovascular structures. Such layered anatomy offers several explanations for the reported movement disturbance, but it does not identify one necessary correlate. Conclusion: Kurcha is best treated at present as a three-dimensional region referenced to Kshipra. Fixed boundaries should await agreement studies, imaging, and dissection.
